// Copyright 2019 The Dawn Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include "dawn/platform/tracing/EventTracer.h"
#include "dawn/common/Assert.h"
#include "dawn/platform/DawnPlatform.h"

namespace dawn::platform::tracing {

const unsigned char* GetTraceCategoryEnabledFlag(Platform* platform, TraceCategory category) {
    static unsigned char disabled = 0;
    if (platform == nullptr) {
        return &disabled;
    }

    const unsigned char* categoryEnabledFlag = platform->GetTraceCategoryEnabledFlag(category);
    if (categoryEnabledFlag != nullptr) {
        return categoryEnabledFlag;
    }

    return &disabled;
}

TraceEventHandle AddTraceEvent(Platform* platform,
                               char phase,
                               const unsigned char* categoryGroupEnabled,
                               const char* name,
                               uint64_t id,
                               int numArgs,
                               const char** argNames,
                               const unsigned char* argTypes,
                               const uint64_t* argValues,
                               unsigned char flags) {
    ASSERT(platform != nullptr);

    double timestamp = platform->MonotonicallyIncreasingTime();
    if (timestamp != 0) {
        TraceEventHandle handle =
            platform->AddTraceEvent(phase, categoryGroupEnabled, name, id, timestamp, numArgs,
                                    argNames, argTypes, argValues, flags);
        return handle;
    }

    return static_cast<TraceEventHandle>(0);
}

}  // namespace dawn::platform::tracing